What does HackerNews think of aniseed?

Something similar: Fennel (https://fennel-lang.org/) is a lisp that compiles into Lua, which neovim can use as plugins, so you can write neovim plugins in a lisp. Aniseed (https://github.com/Olical/aniseed) makes this really easy.

Aniseed is also used by Conjure (Interactive development environment for neovim, used for evaluating Fennel code inside of neovim), which is also made by the same author. Really great plugin for doing Clojure development with neovim. https://github.com/Olical/conjure

Just use vim. Yes, emacs has a lisp engine, but so does nvim[1]. Really, though, using vim properly means that it doesn't need to swallow the kitchen sink[2]. Just use vim.

1: https://github.com/Olical/aniseed

2: https://blog.djha.skin/p/emacs-users-im-okay-i-promise/